Manufacture of cartons and similar receptacles or containers



W. E. J. CROSSBY AND J. MELLOR. MANUFACTURE OF CARTONS AND SIMILAR RECEPTACLES 0R CONTAINERS.

APPLICATION FILED MAR. 15, 1920- Patented Dec. 5, 1922.

MM a5 Patented Dec. 5, 1922. I

sTAEs WILLIAM EDMUND JACOBS CROSSBY,

OFHARROW, AND JOHN M 'LLoR, or HARLESDEN,

ENGLAND.

MANUFACTURE OF CARTONS AND SIMILAR RECEPTACLES OR CONTAINERS.

Application filed March 15, 1920. Serial No. 365,974. 7

To all whom it may concern:

Be it known that we, lVILLIAM EDMUN JACOBS CRossBY and JOHN MELLOR, both subjects of the King of Great Britain, re-

siding respectivel at 48 Longley Road, Harrow, and 32 olland Road, Harlesden, both in the county of Middlesex, England, have invented certain new and useful Improvements in or Relating to the Manufacture of Cartons and Similar Receptacles or Containers, of which the following is a specification. v

This invention relates to the manufacture of cartons and similar receptacles or containers, from tubes of paper, pulp or similar material and of the kind wherein the ends of the cartons or containers are closed by plain or flanged discs which are held in place by beads formed in the body to limit the inward movement of said discs and perfect the joint between the parts.

-The chief object of the invention is to enable said cartons or the like to be manulfztlctured with a neatly fitting replaceable According to our invention the tubes, from which the cartons and similar receptacles or containers are made, are each formed with an annular channelor similar shaped groove or depression of a depth approximating the thickness of the Wall of the tube, and the tube is severed adjacent said groove, whereby the cut-away or parted ofl' portion may be slidably fitted over the depressed part on the remaining portion of the tube. The depressed portions or ends of the tubes may be provided withor adapted to form strengthening rings for giving su port or adding rigidity to the cartons an similar receptacles or containers.

In order that the invention may be clearly understood and readily carried into effect thesame will now be more fullydescribed with reference to the accompanying drawin in which ,i-

igure '1 shows, to an enlarged scale, a tube formed with the annular grooves or depressions preparatory to its being made into a carton.

Figure 2 is a similarview tov Figure 1 showing a portion of tube severed to constitute the flange portion ofa removable lid for a carton." i Figure 3 is a half sectional elevation} showing a carton with the ends closed by tively to the ends of the tube as to form m-l the disc-like ends held in place by beads as above referredto.

Figure 4 is a sectional view of a lid.

Figure 5 is a sectional view of a shallow carton showing how the bottom end disc may be-secured in position.

eferring to F igure 1, a represents the tube from which the carton is. made and in which are formed annular grooves or depressions a a 0. for example, by mounting said tube on a suitable former or mandrel and applying dies or their equivalent to produce said grooves.

The grooves a a are so disposed relaternal seatings for the disc-like ends I) of the carton, see Fi ure 3, whilst the groove or depression a igures 1 and 2, which constitutes the essential feature of our invention serves to provide an external seating for the flange portionof a detachable lid, such a lid being shown at Figure 4. In Figure 2, the portion at the right hand end represents a portion of the tube a severed from the body portion to constitute the flange of a detachable lid after the grooves a a a have been produced. If deslred, the end discs 6- (see Figure 3) may be applied before the severing operation.

In this connection the depth of the groove a is such that, after the severing operation, the cut-away end portion constituting the flange of the lid fits the rebated'po'rtion a left on the box proper, the external shoulder a on the latter providing a seating for the open end of the flange portion of the 11d. To the interior of the grooved portion constituting the top of the carton or box a strengthening or reinforcing ring 0 of paper 'or like material may be applied to add strength or rigidity to the upper wall of the carton and also to prevent the lid from becoming too loose a fit when 'in use. Or, in v lieu of a separate ring the end portion of the tube may be crimped 'or turned over to afford a similar strengthening or reinforcing effect, see Figures 2 and 5. In some cases with lids also adapted to fit outside the vessel an annular beading or the like may be provided for the flange of the lid to rest on, 105 said beading being produced. preferably by grooving or depressing the tube internally so as to form the external beading or ridge; Whilst preferring the flange portion of the lid to fit outside of the box it will, of course, '1 10 be understood that the groove or grooves in the carton may be so formed as to enable said flange to fit inside the carton. Also, if desired, the flange portion of the lid may be provided with strengthening or reinforcing rings of paper or other appropriate material of a nature similar to that used in the manufacture of the cartons or boxes, and in this connection the flange portion of the lid may be crimped or turned over, see Figure 4, in a manner analogous to that referred to, for strengthening or reinforcing the top of the carton. In applying the discs or ends I) to form the lid and the bottom of the box the said discs will be inserted so as to rest'on the shoulders or ridges produced by the grooves or depressions a a nearest the ends of the tube as is well understood and the projecting ends of the tube may be rolled or curled over to secure the discs in position, see Figures 3 and 4, and in the case of the end forming the bottom ofthe carton the projecting or extending ends may be supported or strengthened by an inserted ring which may be secured in position in any appropriate manner. The discs I) may be either plain or flanged as shown at 12 Figure 5, and in the latter event the securing of the discs in position may be efl'ected by crimping or turning over the wall of the tube or the flange of the lid on to the flanged portion of the disc and securing or interlocking the two adjacent flanges together by grooving, scoring or similar operation.

With this invention the cartons or boxes may be made from either waxed or unwaxed l. paper tubes of circular, oval or other form in cross section and in some cases the exterior or interior of said cartons may be covered or lined with glazed paper or other appropriate material to prevent thecontents permeating or adhering to the sides of the container.

What we claim and desire to secure by Letters Patent of the United States is 1. A carton formed from a tube of paper having an annular groove or depression 3. The herein described method of manufacturing cartons from tubes which comprises forming three annular channels or grooves about a tube the intermediate one of said grooves being of greater width than those adjacent the ends of the tube, severing the tube along one side of-the intermediate, wider, groove, bending inwardly the free edge of the portion of the tube initially constituting the bottom of said wider groove, and closing the ends of the tube adjacent said narrower grooves.

4c. The herein described method of manufacturing cartons from tubes which comprises forming an annular groove about a tube, severing the tube along one side of said groove, whereby one section is adapted to be fitted over the other, and fitting closures to the ends of the tube.

WILLIAM EDMUND JACOBS CROISSBY. JOHN MELLOR. 

